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Method and unit for folding a lid reinforcing flap of a rigid, hinged-lid packet of cigarettes

a technology of reinforcing flap and hinged lid, which is applied in the field of method and unit for reinforcing flap of rigid, hinged-lid packet of cigarettes, can solve the problems of complicated adaptation of existing packing machines to produce rigid cigarettes of the above type, and achieve the effect of convenient implementation and low cos

Inactive Publication Date: 2009-12-01
GD SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a method and unit for folding a lid reinforcing flap of a rigid, hinged-lid packet of cigarettes. This method and unit can work with a stack of superimposed collars and is cheap and easy to implement.

Problems solved by technology

The oblique fold lines being oppositely inclined lengthwise of the blank, however, at least one of the two reinforcing flaps cannot be folded 180° by a fixed folding rail (which cannot fold against the travelling direction of the blank).
Adapting an existing packing machine to produce a rigid packet of cigarettes of the above type is therefore complicated, particularly on account of the numerous structural and dimensional factors involved, and the need, obviously, to still ensure adequate access to all the component parts of the packing machine for maintenance and cleaning.

Method used

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  • Method and unit for folding a lid reinforcing flap of a rigid, hinged-lid packet of cigarettes
  • Method and unit for folding a lid reinforcing flap of a rigid, hinged-lid packet of cigarettes
  • Method and unit for folding a lid reinforcing flap of a rigid, hinged-lid packet of cigarettes

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Embodiment Construction

[0025]Number 1 in FIG. 1 indicates as a whole a rigid packet of cigarettes comprising a cup-shaped container 2, and an inner package 3 (FIG. 2) housed inside container 2. Inner package 3 is defined by a parallelepiped-shaped group of cigarettes, and by a sheet of foil packing material completely enclosing the group of cigarettes. Container 2 has an open top end, and a cup-shaped lid 4 connected to container 2 to rotate and translate, with respect to container 2, between a closed position (FIG. 1) and an open position (FIG. 2) closing and opening the open top end respectively.

[0026]When lid 4 is in the closed position, container 2 is in the form of a rectangular-section parallelepiped comprising a top wall 5 and a bottom wall 6 opposite and parallel to each other; a front wall 7 and a rear wall 8 opposite and parallel to each other; and two parallel, opposite lateral walls 9.

[0027]Four longitudinal edges 10 are defined between front wall 7, rear wall 8, and lateral walls 9; and eight...

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Abstract

A method and unit for folding a reinforcing flap of the lid of a rigid, hinged-lid packet of cigarettes, wherein at least one reinforcing flap of the lid is folded 180° with respect to a blank and about a fold line onto the blank; the reinforcing flap is prefolded about the fold line by means of a first folding device having a movable folding body; and folding of the reinforcing flap about the fold line is completed by means of a second folding device having fixed folding rails.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This claims the benefit of Italian patent application No. BO2006A 000588, filed Aug. 3, 2006.TECHNICAL FIELD[0002]The present invention relates to a method and unit for folding a lid reinforcing flap of a rigid, hinged-lid packet of cigarettes.BACKGROUND ART[0003]Rigid, hinged-lid packets of cigarettes are currently the most marketed, by being easy to produce, easy and practical to use, and by effectively protecting the cigarettes inside.[0004]A rigid, hinged-lid packet of cigarettes comprises a group of cigarettes wrapped in a sheet of foil packing material; and a rigid outer package housing the group of cigarettes. The outer package comprises a cup-shaped container housing the group of cigarettes and having an open top end; and a cup-shaped lid hinged to the container along a hinge to rotate, with respect to the container, between an open position and a closed position opening and closing the open end respectively. A collar is normally ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B31B1/52B31B50/52
CPCB65D85/1054B65B19/228B65D85/1056
Inventor CORSINI, ANDREAFIORINI, VALERIOMINARELLI, ALESSANDRO
Owner GD SPA